A Montana woman has been sentenced to 100 years in prison following a tragic carjacking that resulted in the death of a local tattoo artist. Kelsey Jo Staigmiller, 32, received this sentence after previously pleading guilty in December to charges of deliberate homicide and criminal mischief. The incident, which occurred in downtown Great Falls, has left the community mourning the loss of 51-year-old Sarah Bailey. Per People Magazine, Sarah Baile…